Mossberg Unveils Detachable Magazine Shotgun

LAS VEGAS -- O.F. Mossberg & Sons Inc. unveiled its new detachable magazine-fed 590M pump shotgun line at SHOT Show 2018 -- giving shooters up to 20 rounds at the ready.

Instead of the standard tubular magazine, the 590M feeds 12-gauge, 2¾-inch shells from a double-stack magazine that features hardened steel feed lips and an over-molded steel shell ramp for efficient feeding.

The magazine release button is located just forward of the trigger guard.

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"It's brand new for this year," said Justin Tucker of Mossberg, describing how the 590M already has a "fantastic following."

"People love this gun. The slide is very, very smooth because you are not fighting the spring that you would normally fight" on a standard pump shotgun," he said.

The tube magazine on the 590 has been disabled and serves only as a guide for the pump.

"This is a standalone detachable magazine firearm," Tucker said.

Mossberg unveiled its new 590M Detachable Magazine shotgun at SHOT Show 2018.

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The 590M comes standard with a 10-round magazine, but 5-, 15- and 20-round magazines are also available.

The standard model comes with an 18.5-inch barrel and retails for $719. Mossberg also offers the 590M equipped with a heat shield and tri-rail forearm for $802.

-- Matthew Cox can be reached at matthew.cox@military.com.